Homemade air purifier. 2 filters and a box fan : r/mildlyinteresting
DIY air purifiers a hot trend against wildfire smoke
Preparing for poor air quality - DIY air cleaning with Corsi-Rosenthal Boxes : r/preppers
The Cuboid: A DIY air purifier that's better than a box-fan
Finally cleaned this gnarly box fan- dish soap and hot water, magic eraser for the sticky grime on the blades. : r/CleaningTips
The box fan + air filter works. I can breathe in my home. : r/SALEM
LPT: Tape a 20x20" filter mesh to a window fan for a cheap DIY air filter that costs ~$20 : r/LifeProTips
20x20x1 + Box Fan : r/Portland
Cheap air purifier : r/Frugal
Hepa Filter Companion Cube Box Fan : r/bayarea
Do the DIY box fan filters work? Well, here's mine after just 1.5 days running in a closed bedroom (Greenwood area) : r/SeattleWA
Spare fan and good filters : r/madisonwi
Corsi-Rosenthal Cube | Air filtration system, Air cleaner design, Cube
My surprisingly effective shop air cleaner. Box fan, bungee cords, and a furnace filter. Works pretty well. : r/BeginnerWoodWorking
I finally got my hands on the Lasko FF305. I'm kind of baffled why this seems to be the only company that ships a box fan with an air filter built in.
Air filtration : r/BeginnerWoodWorking
Homemade HEPA filter for tiny, dusty apartment. This is the result of 18” furnace HEPA filter + Box fan on about 10 hours per day for 1 month. Total price <$40; 6
Box fan with 3M MERV 12 Filtrete filters on the front and back, duct taped. I have a small room, will this do the trick as a Corsi-Rosenthal box? Not sure why
Box fan filtration cube : r/woodworking
Social media and duct tape are helping people make DIY air purifiers that filter out wildfire smoke
Changed the filter on my home-made box fan filter yesterday; yikes! Instructions inside on how to make your own for about $30 to improve your indoor air quality. : r/SeattleWA
Made an air purifier from a box fan, an air filter, and some duct tape. : r/redneckengineering
